Double Displacement Reaction
1)What is the precipitate formed on mixing the solution of barium chloride and sodium sulphate?

2)Identify the product A in the reaction Al₂O₃ (s) + HClO₄ (aq) --> ……… (aq) + H₂O (l)

3)Which of the following reactions represents the reaction between barium chloride and sodium sulphate correctly?

4)Consider the reaction Aluminium sulphate + Calcium hydroxide--> Aluminium hydroxide +Calcium sulphate. The stoichiometric ratio for the balanced equation are respectively:

5)Identify the precipitate obtained by the reaction between lead nitrate and sodium sulphate.

6)Which one of the following is true about a double displacement reaction?

7)Which one of the following represents a double displacement reaction?

8)Geethu added a small quantity of dil. HCl into a precipitate of barium sulphate in a test tube obtained by adding barium chloride solution to sodium sulphate solution. Which one of the following is the correct observation?

9)While performing an activity in the lab, four students added sodium sulphate solution to four different solutions taken in four different test tubes. In which test tube is a white precipitate observed after the reaction ?


10)In which test tube is a white precipitate formed after a double displacement reaction?



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